package com.jie.eduorder.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.github.wxpay.sdk.WXPayUtil;
import com.jie.eduorder.entity.Order;
import com.jie.eduorder.entity.PayLog;
import com.jie.eduorder.mapper.PayLogMapper;
import com.jie.eduorder.service.OrderService;
import com.jie.eduorder.service.PayLogService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.jie.eduorder.utils.HttpClient;
import com.jie.servicebase.exception.GuLiException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * <p>
 * 支付日志表 服务实现类
 * </p>
 *
 * @author xzj
 * @since 2020-10-17
 */
@Service
public class PayLogServiceImpl extends ServiceImpl<PayLogMapper, PayLog> implements PayLogService {

    private final OrderService orderService;

    @Autowired
    public PayLogServiceImpl(OrderService orderService) {
        this.orderService = orderService;
    }

    @Override
    public Map<String, Object> createNative(String orderNo) {
        try {
            // 1.根据订单号查询订单信息
            Order order = orderService.getOne((new QueryWrapper<Order>()).eq("order_no", orderNo));

            // 2.使用map设置生成二维码需要的参数
            Map<String, String> m = new HashMap<>();
            m.put("appid", "wx74862e0dfcf69954");
            m.put("mch_id", "1558950191");
            m.put("nonce_str", WXPayUtil.generateNonceStr());
            m.put("body", order.getCourseTitle());   // 课程标题
            m.put("out_trade_no", orderNo);          // 订单号
            m.put("total_fee", order.getTotalFee().multiply(new BigDecimal("100")).longValue()+"");
            m.put("spbill_create_ip", "127.0.0.1");  // 本地
            m.put("notify_url",
                    "http://guli.shop/api/order/weixinPay/weixinNotify\n");  // 回调
            m.put("trade_type", "NATIVE");  // 二维码类型

            // 3.发送httpclient请求, 传递参数(xml格式), 微信支付提供的固定的地址
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/unifiedorder");
            // 设置xml格式的参数(要传入固定的key, 每个商户都不一样)
            client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true);
            // 执行post请求发送
            client.post();

            // 4.得到发送请求返回结果
            // 返回的内容使用xml格式返回
            String xml = client.getContent();
            // 将xml格式转换为map集合并返回
            Map<String, String> resultMap = WXPayUtil.xmlToMap(xml);
            // 最终返回数据的封装
            Map<String, Object> map = new HashMap<>();
            map.put("out_trade_no", orderNo);
            map.put("course_id", order.getCourseId());
            map.put("total_fee", order.getTotalFee());
            map.put("result_code", resultMap.get("result_code"));  // 二维码操作的状态码
            map.put("code_url", resultMap.get("code_url"));        // 二维码地址

            return map;
        } catch (Exception e) {
            throw new GuLiException(20001, "生成二维码失败!");
        }
    }

    @Override
    public Map<String, String> queryPayStatus(String orderNo) {
        try {
            // 1.封装参数
            Map<String, String> m = new HashMap<>();
            m.put("appid", "wx74862e0dfcf69954");
            m.put("mch_id", "1558950191");
            m.put("out_trade_no", orderNo);
            m.put("nonce_str", WXPayUtil.generateNonceStr());

            // 2.发送httpclient请求
            HttpClient client = new HttpClient("https://api.mch.weixin.qq.com/pay/orderquery");
            client.setXmlParam(WXPayUtil.generateSignedXml(m, "T6m9iK73b0kn9g5v426MKfHQH7X8rKwb"));
            client.setHttps(true);
            // 发送请求
            client.post();

            // 3.得到请求返回的内容
            String xml = client.getContent();
            // 转成map再返回
            return WXPayUtil.xmlToMap(xml);
        } catch (Exception e) {
            throw new GuLiException(20001, "获取支付信息失败!");
        }
    }

    @Override
    public void updateOrderStatus(Map<String, String> map) {
        // 从map中获取订单号
        String orderNo = map.get("out_trade_no");

        // 根据订单号查询订单信息
        Order order = orderService.getOne((new QueryWrapper<Order>()).eq("order_no", orderNo));

        // 更新订单表订单状态
        if (order.getStatus() == 1) {  // 如果是支付状态则不需要再继续往下更新
            return;
        }

        order.setStatus(1);  // 1代表已支付, 0代表未支付
        orderService.updateById(order);

        // 向支付表中添加记录
        PayLog payLog = new PayLog();
        payLog.setOrderNo(orderNo);                          // 支付订单号
        payLog.setPayTime(new Date());                       // 订单完成时间
        payLog.setPayType(1);                                // 支付类型 1微信
        payLog.setTotalFee(order.getTotalFee());             // 总金额(分)
        payLog.setTradeState(map.get("trade_state"));        // 支付状态
        payLog.setTransactionId(map.get("transaction_id"));  // 流水号
        payLog.setAttr(JSONObject.toJSONString(map));
        baseMapper.insert(payLog);

    }

}
